Reference:

Timo Honkela and Ari M. Vepsäläinen. Interpreting imprecise expressions: Experiments with Kohonen's self-organizing maps and associative memory. In T. Kohonen, K. Mäkisara, O. Simula, and J. Kangas, editors, Artificial Neural Networks, volume I, pages 897–902, Amsterdam, Netherlands, 1991. North-Holland.

Suggested BibTeX entry:

@inproceedings{honkela91a,
    address = {Amsterdam, Netherlands},
    author = {Timo Honkela and Ari M. Veps{\"{a}}l{\"{a}}inen},
    booktitle = {Artificial Neural Networks},
    editor = {T. Kohonen and K. M{\"{a}}kisara and O. Simula and J. Kangas},
    pages = {897--902},
    publisher = {North-Holland},
    title = {Interpreting Imprecise Expressions: Experiments with {K}ohonen's Self-Organizing Maps and Associative Memory},
    volume = {I},
    year = {1991},
}